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arXiv · 1608.02854

Salecker-Wigner-Peres quantum clock applied to strong-field tunnel ionization

Nicolas Teeny·Christoph H. Keitel·Heiko Bauke
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Abstract

The Salecker-Wigner-Peres quantum-clock approach is applied in order to determine the tunneling time of an electron in strong-field tunnel ionization via a time-dependent electric field. Our results show that the ionization of the electron takes a nonvanishing period of time. This tunneling time is of the order of the Keldysh time but strictly larger than the Keldysh time. Comparing the quantum-clock tunneling time to the mean tunneling time as obtained by the virtual-detector approach, one finds that these two complementary methods give very similar results. Due to the asymmetric distribution of the tunneling time, there is a nonnegligible discrepancy between the mean tunneling time and the most probable tunneling time.

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Nicolas Teeny, Christoph H. Keitel, Heiko Bauke. 2016-08-09. Salecker-Wigner-Peres quantum clock applied to strong-field tunnel ionization. https://arxiv.org/abs/1608.02854

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